Intro to Project Management: Project Cost Management Forecasting EAC AC BAC EV ETC TCPI

What This Is

Forecasting is a critical project management technique used to estimate the future costs, time, and resources required to complete a project. It involves analyzing historical data, current progress, and future plans to predict the project's outcome. For instance, consider a construction project where a team is building a new office building. The project manager uses forecasting to estimate the remaining costs and time required to complete the project, ensuring it's completed within the allocated budget and schedule.

Key Terms & Formulas

• Earned Value (EV): The value of work completed, calculated as EV = % complete × BAC (Budget at Completion).
• Actual Cost (AC): The total cost incurred to date.
• Budget at Completion (BAC): The total budget allocated for the project.
• Budgeted Cost of Work Scheduled (BCWS): The budgeted cost for work scheduled to be completed.
• Budgeted Cost of Work Performed (BCWP): The budgeted cost for work actually completed.
• Cost Performance Index (CPI): CPI = EV / AC, indicating how efficiently the project is being executed.
• Earned Value Management (EVM): A methodology for measuring project performance using earned value.
• Estimate at Completion (EAC): The estimated total cost to complete the project, calculated as EAC = AC + (BAC – EV).
• Estimate to Complete (ETC): The estimated cost required to complete the remaining work.
• To-Complete Performance Index (TCPI): TCPI = (BAC – EV) / (BAC – AC), indicating the efficiency required to complete the project.
• Cost Variance (CV): CV = EV – AC, indicating the difference between earned value and actual cost.
• Schedule Variance (SV): SV = EV – BCWS, indicating the difference between earned value and budgeted cost of work scheduled.

Step-by-Step / Process Flow

1. Monitor and Control: Regularly track project progress, including actual costs, earned value, and schedule performance.
2. Analyze: Use historical data and current trends to identify patterns and make predictions about future costs and time.
3. Forecast: Estimate the remaining costs and time required to complete the project using formulas such as EAC, ETC, and TCPI.
4. Update: Adjust the project schedule and budget as necessary to ensure the project stays on track.
5. Communicate: Share the forecast with stakeholders, including the project team, sponsors, and customers.

Common Mistakes

• Mistake: Failing to regularly update the project schedule and budget.
• Correction: Regularly review and update the project schedule and budget to ensure the project stays on track.

• Why: Failing to update the project schedule and budget can lead to cost and time overruns, negatively impacting the project's overall success.

• Mistake: Misusing the Cost Performance Index (CPI) to evaluate project performance.

• Correction: Use the CPI in conjunction with other metrics, such as the Cost Variance (CV) and Schedule Variance (SV), to evaluate project performance.

• Why: The CPI alone may not provide a complete picture of project performance, as it does not account for schedule delays or other factors.

• Mistake: Failing to account for risks and uncertainties when forecasting project costs and time.

• Correction: Incorporate risk management techniques, such as risk assessment and mitigation planning, into the forecasting process.
• Why: Failing to account for risks and uncertainties can lead to inaccurate forecasts and negatively impact the project's overall success.

Exam Tips

• Tip: Be prepared to apply forecasting formulas, such as EAC and TCPI, to scenario-based questions.
• Why: The exam may test your ability to apply forecasting formulas to real-world scenarios.
• Tip: Understand the differences between earned value and actual cost, as well as the implications for project performance.
• Why: The exam may test your understanding of these concepts and their application to project management.

Quick Practice Questions

1. If the CPI is 0.8, is the project under or over budget? Answer: Under budget. Explanation: A CPI of 0.8 indicates that the project is being executed efficiently, resulting in a lower actual cost compared to the budgeted cost.
2. If the EAC is $100,000 and the AC is $80,000, what is the estimated cost to complete (ETC)? Answer: $20,000. Explanation: The EAC is calculated as EAC = AC + (BAC – EV). Rearranging the formula, ETC = EAC – AC = $100,000 – $80,000 = $20,000.
3. If the TCPI is 0.6, what is the required efficiency to complete the project? Answer: 60%. Explanation: The TCPI is calculated as TCPI = (BAC – EV) / (BAC – AC). A TCPI of 0.6 indicates that the project requires a 60% efficiency to complete the remaining work.

Last-Minute Cram Sheet

1. Earned Value (EV) = % complete × BAC.
2. EAC = AC + (BAC – EV).
3. ETC = EAC – AC.
4. TCPI = (BAC – EV) / (BAC – AC).
5. CPI = EV / AC.
6. CV = EV – AC.
7. SV = EV – BCWS.
8. ⚠️ EVM is a methodology for measuring project performance using earned value.
9. ⚠️ TCPI indicates the required efficiency to complete the project.
10. ⚠️ CPI alone may not provide a complete picture of project performance.